In Reply to: 6AS7G/6N13S sound quality & longevity ?'s posted by tsully1@att.net on January 14, 2024 at 08:37:12:
- the American 6AS7G is supposed to sound a bit better (probably owing to making slightly more power) but are also tricky with reliability because they are not designed for fixed bias operation.
So in a nutshell if you are going to use tubes that hold up, there isn't a lot of difference with the sound.
Over time their transconductance will go down. So when replaced with good tubes you will hear an improvement. Checking them is tricky since many testers don't give an accurate reading. We test them in circuit.
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Follow Ups
- The Chinese and Russian power tubes sound similar, - Ralph 07:53:11 01/15/24 (1)
- RE: Been running M60s for 20 years - acres verde 11:16:38 01/15/24 (0)